ASA Extrusions (Geloy®)

Lakeland Plastics manufactures high-performance ASA extrusions designed for superior weatherability, color stability, and long-term outdoor durability.

Material Name: ASA (Acrylonitrile Styrene Acrylate)

ASA, or acrylonitrile styrene acrylate, is an engineered thermoplastic widely used in extrusion applications that demand long-term outdoor performance. Known for its excellent UV resistance and color retention, ASA maintains its appearance and mechanical integrity even when exposed to sunlight, moisture, and temperature fluctuations. Branded formulations such as Geloy® further enhance these properties, making ASA a preferred choice for exterior profiles that must combine durability with a clean, consistent finish.

Acrylonitrile styrene acrylate for extrusions

ASA: Definition

Acrylonitrile styrene acrylate (ASA) is a weather-resistant thermoplastic polymer composed of acrylonitrile, styrene, and an acrylic elastomer. Unlike ABS, which uses butadiene rubber, ASA incorporates acrylic rubber to significantly improve resistance to UV degradation and environmental stress. This structure allows ASA extrusions to retain color, gloss, and structural performance over time, even in demanding outdoor conditions. As a result, ASA is commonly specified for applications where long-term exposure to the elements is a critical factor.

Pros of ASA

  • Excellent UV resistance for prolonged outdoor exposure
  • Superior color retention with minimal fading or yellowing
  • Strong weatherability against moisture, heat, and environmental stress
  • Good impact resistance and toughness
  • Consistent dimensional stability in extrusion profiles
  • Resistant to cracking, chalking, and surface degradation
  • Smooth, high-quality surface finish for visible applications
  • Good chemical resistance to many industrial and environmental agents
  • Ideal for co-extrusion as a protective outer cap layer

Cons of ASA

  • Higher cost compared to commodity plastics like PVC or standard ABS
  • Lower high-temperature resistance than some engineering-grade thermoplastics
  • Slightly reduced impact strength compared to ABS in certain formulations
  • Requires controlled processing conditions during extrusion
  • Not well suited for heavy structural or load-bearing applications

ASA Extrusion Products

  • Custom ASA profiles and channels
  • Exterior trim and molding components
  • Co-extruded ASA capstock layers
  • Protective covers and housings
  • Architectural and decorative extrusion profiles
  • Equipment panels and enclosures
  • Weather-resistant edge trims and guards

ASA Extrusion Applications

  • Outdoor building and construction components
  • Automotive exterior trim and body parts
  • RV and marine exterior profiles
  • Window, door, and siding systems
  • Outdoor equipment housings and protective enclosures
  • Signage and display systems exposed to the elements
  • Agricultural and industrial outdoor applications

Custom ASA Extrusions

At Lakeland Plastics, we work side-by-side with your team to develop custom ASA extrusion profiles that meet your exact dimensional, functional, and aesthetic requirements. ASA performs especially well in co-extrusion, where a UV-resistant cap layer protects the underlying structural material. The result is a durable, weatherable finish without the added cost of running solid ASA throughout the entire profile.

From initial design and tooling to prototyping and full-scale production, our process stays hands-on and collaborative at every stage. And while ASA is a go-to for outdoor performance, we also work with a wide range of thermoplastics to ensure you’re using the right material for your application—not just the most obvious one.

ASA Extrusion Capabilities

Lakeland Plastics offers advanced ASA extrusion capabilities backed by modern production equipment, in-house tooling, and experienced engineering support. Because ASA is commonly used in visible, outdoor applications, our processes are optimized for surface quality, color consistency, and long-term durability. Our capabilities include:

  • Custom ASA profiles produced in complex geometries with tight tolerances to meet precise application requirements
  • Co-extrusion and capstock extrusion that provide UV-resistant outer layers to enhance long-term weatherability
  • Custom color matching to ensure consistent, high-quality finishes aligned with your brand or design specifications
  • Extrusion of trims, housings, panels, and protective components that support a wide range of functional and aesthetic applications
  • Post-extrusion fabrication services including cutting, drilling, routing, and assembly for complete, ready-to-use parts
  • Prototype through high-volume production runs that allow for seamless scaling from development to full manufacturing

With multiple extrusion lines, precision cooling and sizing systems, and rigorous quality control, Lakeland Plastics delivers ASA extrusions that maintain performance, appearance, and reliability—even in the most demanding outdoor environments.

Ready to Get Started with ASA Extrusions? Contact Us or Request a Quote Today

What Companies Are Saying About Our LDPE Plastic Extrusions

LDPE Plastic Extrusion Resources